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Finding the Fourth Proportional to 173,876.40, 260,620.20 and 74,019.60

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Solution

The fourth proportional to 173,876.40, 260,620.20 and 74,019.60 is: 110,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,876.40 : 260,620.20 = 74,019.60 : x
  2. Step 2: Convert to fraction form
    173,876.40/260,620.20 = 74,019.60/x
  3. Step 3: Cross multiply
    173,876.40x = 260,620.20 × 74,019.60
  4. Step 4: Simplify right side
    173,876.40x = 19,291,002,955.92
  5. Step 5: Solve for x
    x = 19,291,002,955.92/173,876.40
  6. Step 6: Final answer
    x = 110,946.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.